#B41A1B#B41A1B

#B41A1B is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.5% C 0.187 H 27.4°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#B41A1B
RGB	rgb(180, 26, 27)
HSL	hsl(360, 75%, 40%)
HSV	hsv(360, 86%, 71%)
CMYK	cmyk(0%, 85.6%, 85%, 29.4%)
CIE-LAB	lab(38.77, 58.28, 41.25)
CIE-LCH	lch(38.77, 71.40, 35.29°)
OKLab	oklab(49.47% 0.1662 0.0861)
OKLCH	oklch(49.47% 0.187 27.4)
XYZ	xyz(19.3921, 10.5245, 2.0471)
Luminance	0.1052 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B41A1B #1AB4B3

analogous

#B41A68 #B41A1B #B4661A

triadic

#B41A1B #1BB41A #1A1BB4

tetradic

#B41A1B #68B41A #1AB4B3 #661AB4

square

#B41A1B #68B41A #1AB4B3 #661AB4

split-complementary

#B41A1B #1AB466 #1A68B4

monochromatic

#490B0B #7F1213 #B41A1B #E02B2C #E86061

Accessibility & contrast

On white

6.77

#B41A1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#B41A1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B41A1B

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B41A1B	#FFFFFF	#000000	##FFFFFF
##B41A1B	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4618

Deuteranopia (green-blind)

#746711

Tritanopia (blue-blind)

#C7001E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #b41a1b;
/* rgb */ color: rgb(180, 26, 27);
/* oklch */ color: oklch(49.5% 0.187 27.4);

Tailwind

colors: {
  custom: {
    50: '#d56a59',
    500: '#b41a1b',
    950: '#000000',
  },
}

SCSS

$custom: #b41a1b;
$custom-light: #d56a59;
$custom-dark: #000000;

JSON

{
  "hex": "#b41a1b",
  "rgb": {
    "r": 180,
    "g": 26,
    "b": 27
  },
  "hsl": {
    "h": 359.61,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.4947,
    "c": 0.18716,
    "h": 27.4
  },
  "luminance": 0.10521
}

Semantic roles & 50–950 ramp

primary

#B41A1B

secondary

#5DCCCC

accent

#F1F036

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160703

muted

#847A78

Preview Lab

Preview with #B41A1B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →